BW2 question:
What is the point of the Funfest/Entralink Missions?
And are they still accessible after Wi-Fi closed down?
Funfest is just local wireless so should be usable as ever.
Pointless minigames, only use is to get Shards for BW2 tutors; luckily this is pretty easy, just bike around Castelia and Nimbasa until you get what you need.
Entralink I never ever used so can't tell you much. Entree forest is moot with support dropped / no WiFi, but I guess injecting Pokémon directly into the forest is still possible with save editors.